I have to really disagree on the melee is weak part. So far Madora my 2h Melee Character has been one of the stronges parts of my group. She simply charges the enemy and can 1 or 2 hit most really tough enemies on her own with her sword. My mage can not even compare to that. She hits for 100+ easily while the best spells for my mage usually hit for 50-80 and then have some tie cooldown. I saw her crit for 300.
Also melee does have some nice aoe ability. I witnessed Madora surrounded by 3 enemies, Whirlwind and 3 enemies lay bleeding at her feet.
I do feel that Rangers have the short stick tough. I see my brother using his bow and when he uses his ability he does maybe 30-40 damage 3x or his rikochet for 40 damage on all enemies. Feels a tad weak (however he sure than makes that up by his insane spider that tanks like mad and dishes out great damage ^^)
On the account of rogues, could not try one. It seems I killed the skill book vendor in the 1st floor of King Crabs Inn (was that the women that said casually she had some source magik?). Does anyone know any skillbook vendor for rogues other than the one in the king crab inn?